#3B51B2

Color Details

HEX
#3B51B2
RGB
rgb(59, 81, 178)
HSL
hsl(229, 50%, 46%)
CMYK
cmyk(67%, 54%, 0%, 30%)
Best text on this color #FFFFFF (CR 6.99:1) Determined by WCAG contrast ratio

Readability Previews

Black on #3b51b2
Contrast 3.01:1 Fail
White on #3b51b2
Contrast 6.99:1 AA
#3b51b2 on Black
Contrast 3.01:1 Fail
#3b51b2 on White
Contrast 6.99:1 AA

Tints & Shades

#6274c1
#8997d1
#b1b9e0
#2f418e
#23316b
#182047

Complement & Analogous

#b09a3b
#603bb0
#3b8bb0

Triadic

#b03b50
#50b03b

Monochrome

#182047 #23316b #3b51b2 #8997d1 #b1b9e0 #d8dcf0

Analogous

#3b8bb0 #76aec8 #3b51b2 #8062c0 #603bb0 #4d2f8d

Complementary Mix

#23316b #3b51b2 #8997d1 #b09a3b #ccbd80 #726426

Nearby Colors

#3b51b1
#3b51b3
#3b51a2
#3b51c2

Embed #3B51B2 swatch

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About #3B51B2

#3B51B2 converts to RGB(59, 81, 178) and HSL(229, 50%, 46%). This page provides quick readability checks, related hues (complementary and analogous), and ready-made palettes so you can drop the color into UI components, images, or CSS immediately.

Tip: Use the “Best text” chip above as a safe default foreground on this color (chosen by contrast ratio).

#3B51B2 FAQs

What is the RGB value of #3B51B2?
RGB: 59, 81, 178. Copy as CSS: rgb(59, 81, 178)
Is #3B51B2 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #3B51B2?
Complement: #b09a3b.
Does #3B51B2 have good contrast on white or black?
On white: 6.99:1 (AA (normal text)). On black: 3.01:1 (AA (large text)).